A variety of terricolous fungi inhabit the biological soil crust of arid regions. A fungus (ˈfʌŋgəs is a eukaryotic Organism that is a member of the kingdom Fungi (ˈfʌndʒaɪ In more Arid regions vegetative cover is generally sparse Open spaces are usually covered by a biological soil crust or biocrust, a highly specialized community In general terms the Climate of a local or region is said to be arid when it is characterized by a severe lack of available Water, to the extent of hindering Those exposed to the sun typically contain melanin and are resistant to high temperatures, dryness and low nutrition. Melanin is a class of compounds found in the Plant, Animal and Protista kingdoms, where it serves predominantly as a Pigment. Species that are common elsewhere (e. g. Penicillium spp. Penicillium (from Latin penicillus: paintbrush) is a Genus of Ascomyceteous Fungi that includes and common soil Aspergillus spp. Aspergillus is a Genus of around 200 Molds found throughout much of nature worldwide ) do not thrive in these conditions. Producing large dark multicellular spores also helps survival. In Biology, a spore is a reproductive structure that is adapted for dispersal and surviving for extended periods of time in unfavorable conditions Sexually reproducing ascomycetes, especially Chaetomium spp. Ascomycota is a Division / Phylum of Fungi, and subkingdom Dikarya, whose members are commonly known as the Sac Fungi. Chaetomium is a Genus of Molds It is a dematiaceous (dark-walled fungus normally found in soil air and plant debris , have developed resilience by growing thick, dark perithecia. An ascocarp, or ascoma (plural ascomata) is the fruiting body ( Sporocarp) of an Ascomycete fungus Under desert shrubs, however, more sensitive species such as Gymnoascus reesii prevail. ^[1] These types of Fungi are found in the Desert.

1. ^ Grishkan, I. , E. Zaady & E. Nevo. (2006) "Soil crust microfungi along as southward rainfall gradient in desert ecosystems. " Eur. J. Soil Biol. 42: 33-42.

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